oil & gas

The estimating and auditing of petroleum and gas reserves information is predicated upon certain historically developed principles of geoscience, petroleum engineering, and evaluation methodologies, which are in turn based on principles of physical science, mathematics, and economics. Although these generally accepted geological evaluation principles are predicated on established scientific concepts, the application of such principles involves extensive judgments by qualified individuals and is subject to changes in (i) existing knowledge and technology; (ii) fiscal and economic conditions; (iii) applicable contractual, statutory, and regulatory provisions; and (iv) the purposes for which the Reserves information is to be used. GRB’s consulting Reserves Estimators determine the geological and engineering methods to be used in estimating Reserves Information by considering: • The sufficiency and reliability of the database; • The stage of development; • The performance history; • Their experience with respect to such Property or group of properties, and with respect to similar properties; and • The significance of such property or group of properties to the aggregate oil and gas properties and interests being estimated or evaluated. Services offered by GRB consulting petroleum geologists are as follows: • Reserve Characterization • Reserve Simulation • Reserves Determination • Geological Analysis • Petrophysical Analysis • Geological Field StudiesReserves Determination The most important factor in reserves determination is the experience and knowledge of the evaluator. Our reserves consultants have extensive experience in reserves determination, creating and comparing both deterministic and probabilistic methods to ensure the highest quality, most accurate estimate, by conducting: • Reserves determination studies using classical as well as 3D-seismic interpretation, geological and geophysical modeling, reservoir engineering and simulation, and deterministic and probabilistic methods • Gas reserves certification studiesGeological Analysis Geological analysis can reduce risk and uncertainty in all phases of hydrocarbon exploration and production. Our high-level and seasoned geological consultants have extensive experience in conducting geological analysis and are available for: • Integrating geophysical, petrophysical, and local/ regional geological data, making interpretations and developing robust 3D geological models (using Petrel or other commonly used geomodeling software) suitable for export to dynamic simulation models (such as Eclipse) for calculation of oil and gas in-place • Identifying geological uncertainties • Generating a full range of probabilistic volumetrics from data acquisition • Recommendations for integrated evaluation with geophysical, petrophysical, engineering, and production data Our geological consultants (working as a part of our geosciences team) are ready and well prepared to assist our clients in developing static models of their oil & gas reservoirs.Petrophysical Analysis Our high-level and seasoned petrophysical consultants have extensive experience in conducting petrophysical analysis (using PowerLog, Integrated Petrophysics (IP), and other commonly used petrophysical analysis software) and are available for evaluation of all types of well logs. In combination with core and production data, well logs are evaluated to determine: • reservoir and fluid properties • fluid types • fluid contacts • mineralogy • fracturing From data acquisition recommendations to integrated evaluation with geological, engineering, and production data, our petrophysical consultants (working as a part of our geosciences team) are well prepared to assist our clients in developing static models of their oil & gas reservoirs.Geological Field Studies Our seasoned geosciences consultants possess extensive experience in conducting geological field studies and are available for: • Detailed field mapping and modeling • Integration of structure, regional trends, reservoir properties, fluid characteristics, and production data Geological field studies include evaluation of by-passed reserves, reservoir compartmentalization, and deeper-pool drilling. Our evaluations result in recommendations for efficient utilization of existing wells, including workover and re-completion programs, sidetracking, and horizontal drilling. Evaluations range from new-field development to improved/enhanced oil recovery (EOR) in existing oil fields. We also provide: • Reserves determinations • Economic analysis (discounted-cash flow, net present value and price and reserve sensitivity) • Acquisition and divestiture evaluations Our professional and experienced geosciences consultants have decades of experience working on complicated oil & gas fields.